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-rw-r--r--include/media/v4l2-common.h4
-rw-r--r--include/media/v4l2-uvc.h359
2 files changed, 363 insertions, 0 deletions
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index b708d63995f4..725ff91b26e0 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -540,6 +540,10 @@ int v4l2_fill_pixfmt_mp(struct v4l2_pix_format_mplane *pixfmt, u32 pixelformat,
s64 v4l2_get_link_freq(struct v4l2_ctrl_handler *handler, unsigned int mul,
unsigned int div);
+void v4l2_simplify_fraction(u32 *numerator, u32 *denominator,
+ unsigned int n_terms, unsigned int threshold);
+u32 v4l2_fraction_to_interval(u32 numerator, u32 denominator);
+
static inline u64 v4l2_buffer_get_timestamp(const struct v4l2_buffer *buf)
{
/*
diff --git a/include/media/v4l2-uvc.h b/include/media/v4l2-uvc.h
new file mode 100644
index 000000000000..f83e31661333
--- /dev/null
+++ b/include/media/v4l2-uvc.h
@@ -0,0 +1,359 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * v4l2 uvc internal API header
+ *
+ * Some commonly needed functions for uvc drivers
+ */
+
+#ifndef __LINUX_V4L2_UVC_H
+#define __LINUX_V4L2_UVC_H
+
+/* ------------------------------------------------------------------------
+ * GUIDs
+ */
+#define UVC_GUID_UVC_CAMERA \
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}
+#define UVC_GUID_UVC_OUTPUT \
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02}
+#define UVC_GUID_UVC_MEDIA_TRANSPORT_INPUT \
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03}
+#define UVC_GUID_UVC_PROCESSING \
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01}
+#define UVC_GUID_UVC_SELECTOR \
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02}
+#define UVC_GUID_EXT_GPIO_CONTROLLER \
+ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03}
+
+#define UVC_GUID_FORMAT_MJPEG \
+ { 'M', 'J', 'P', 'G', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_YUY2 \
+ { 'Y', 'U', 'Y', '2', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_YUY2_ISIGHT \
+ { 'Y', 'U', 'Y', '2', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0x00, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_NV12 \
+ { 'N', 'V', '1', '2', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_YV12 \
+ { 'Y', 'V', '1', '2', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_I420 \
+ { 'I', '4', '2', '0', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_UYVY \
+ { 'U', 'Y', 'V', 'Y', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Y800 \
+ { 'Y', '8', '0', '0', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Y8 \
+ { 'Y', '8', ' ', ' ', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Y10 \
+ { 'Y', '1', '0', ' ', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Y12 \
+ { 'Y', '1', '2', ' ', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Y16 \
+ { 'Y', '1', '6', ' ', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_BY8 \
+ { 'B', 'Y', '8', ' ', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_BA81 \
+ { 'B', 'A', '8', '1', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_GBRG \
+ { 'G', 'B', 'R', 'G', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_GRBG \
+ { 'G', 'R', 'B', 'G', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_RGGB \
+ { 'R', 'G', 'G', 'B', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_BG16 \
+ { 'B', 'G', '1', '6', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_GB16 \
+ { 'G', 'B', '1', '6', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_RG16 \
+ { 'R', 'G', '1', '6', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_GR16 \
+ { 'G', 'R', '1', '6', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_RGBP \
+ { 'R', 'G', 'B', 'P', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_BGR3 \
+ { 0x7d, 0xeb, 0x36, 0xe4, 0x4f, 0x52, 0xce, 0x11, \
+ 0x9f, 0x53, 0x00, 0x20, 0xaf, 0x0b, 0xa7, 0x70}
+#define UVC_GUID_FORMAT_M420 \
+ { 'M', '4', '2', '0', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+
+#define UVC_GUID_FORMAT_H264 \
+ { 'H', '2', '6', '4', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_H265 \
+ { 'H', '2', '6', '5', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Y8I \
+ { 'Y', '8', 'I', ' ', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Y12I \
+ { 'Y', '1', '2', 'I', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_Z16 \
+ { 'Z', '1', '6', ' ', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_RW10 \
+ { 'R', 'W', '1', '0', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_INVZ \
+ { 'I', 'N', 'V', 'Z', 0x90, 0x2d, 0x58, 0x4a, \
+ 0x92, 0x0b, 0x77, 0x3f, 0x1f, 0x2c, 0x55, 0x6b}
+#define UVC_GUID_FORMAT_INZI \
+ { 'I', 'N', 'Z', 'I', 0x66, 0x1a, 0x42, 0xa2, \
+ 0x90, 0x65, 0xd0, 0x18, 0x14, 0xa8, 0xef, 0x8a}
+#define UVC_GUID_FORMAT_INVI \
+ { 'I', 'N', 'V', 'I', 0xdb, 0x57, 0x49, 0x5e, \
+ 0x8e, 0x3f, 0xf4, 0x79, 0x53, 0x2b, 0x94, 0x6f}
+#define UVC_GUID_FORMAT_CNF4 \
+ { 'C', ' ', ' ', ' ', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+
+#define UVC_GUID_FORMAT_D3DFMT_L8 \
+ {0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+#define UVC_GUID_FORMAT_KSMEDIA_L8_IR \
+ {0x32, 0x00, 0x00, 0x00, 0x02, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+
+#define UVC_GUID_FORMAT_HEVC \
+ { 'H', 'E', 'V', 'C', 0x00, 0x00, 0x10, 0x00, \
+ 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}
+
+/* ------------------------------------------------------------------------
+ * Video formats
+ */
+
+struct uvc_format_desc {
+ char *name;
+ u8 guid[16];
+ u32 fcc;
+};
+
+static struct uvc_format_desc uvc_fmts[] = {
+ {
+ .name = "YUV 4:2:2 (YUYV)",
+ .guid = UVC_GUID_FORMAT_YUY2,
+ .fcc = V4L2_PIX_FMT_YUYV,
+ },
+ {
+ .name = "YUV 4:2:2 (YUYV)",
+ .guid = UVC_GUID_FORMAT_YUY2_ISIGHT,
+ .fcc = V4L2_PIX_FMT_YUYV,
+ },
+ {
+ .name = "YUV 4:2:0 (NV12)",
+ .guid = UVC_GUID_FORMAT_NV12,
+ .fcc = V4L2_PIX_FMT_NV12,
+ },
+ {
+ .name = "MJPEG",
+ .guid = UVC_GUID_FORMAT_MJPEG,
+ .fcc = V4L2_PIX_FMT_MJPEG,
+ },
+ {
+ .name = "YVU 4:2:0 (YV12)",
+ .guid = UVC_GUID_FORMAT_YV12,
+ .fcc = V4L2_PIX_FMT_YVU420,
+ },
+ {
+ .name = "YUV 4:2:0 (I420)",
+ .guid = UVC_GUID_FORMAT_I420,
+ .fcc = V4L2_PIX_FMT_YUV420,
+ },
+ {
+ .name = "YUV 4:2:0 (M420)",
+ .guid = UVC_GUID_FORMAT_M420,
+ .fcc = V4L2_PIX_FMT_M420,
+ },
+ {
+ .name = "YUV 4:2:2 (UYVY)",
+ .guid = UVC_GUID_FORMAT_UYVY,
+ .fcc = V4L2_PIX_FMT_UYVY,
+ },
+ {
+ .name = "Greyscale 8-bit (Y800)",
+ .guid = UVC_GUID_FORMAT_Y800,
+ .fcc = V4L2_PIX_FMT_GREY,
+ },
+ {
+ .name = "Greyscale 8-bit (Y8 )",
+ .guid = UVC_GUID_FORMAT_Y8,
+ .fcc = V4L2_PIX_FMT_GREY,
+ },
+ {
+ .name = "Greyscale 8-bit (D3DFMT_L8)",
+ .guid = UVC_GUID_FORMAT_D3DFMT_L8,
+ .fcc = V4L2_PIX_FMT_GREY,
+ },
+ {
+ .name = "IR 8-bit (L8_IR)",
+ .guid = UVC_GUID_FORMAT_KSMEDIA_L8_IR,
+ .fcc = V4L2_PIX_FMT_GREY,
+ },
+ {
+ .name = "Greyscale 10-bit (Y10 )",
+ .guid = UVC_GUID_FORMAT_Y10,
+ .fcc = V4L2_PIX_FMT_Y10,
+ },
+ {
+ .name = "Greyscale 12-bit (Y12 )",
+ .guid = UVC_GUID_FORMAT_Y12,
+ .fcc = V4L2_PIX_FMT_Y12,
+ },
+ {
+ .name = "Greyscale 16-bit (Y16 )",
+ .guid = UVC_GUID_FORMAT_Y16,
+ .fcc = V4L2_PIX_FMT_Y16,
+ },
+ {
+ .name = "BGGR Bayer (BY8 )",
+ .guid = UVC_GUID_FORMAT_BY8,
+ .fcc = V4L2_PIX_FMT_SBGGR8,
+ },
+ {
+ .name = "BGGR Bayer (BA81)",
+ .guid = UVC_GUID_FORMAT_BA81,
+ .fcc = V4L2_PIX_FMT_SBGGR8,
+ },
+ {
+ .name = "GBRG Bayer (GBRG)",
+ .guid = UVC_GUID_FORMAT_GBRG,
+ .fcc = V4L2_PIX_FMT_SGBRG8,
+ },
+ {
+ .name = "GRBG Bayer (GRBG)",
+ .guid = UVC_GUID_FORMAT_GRBG,
+ .fcc = V4L2_PIX_FMT_SGRBG8,
+ },
+ {
+ .name = "RGGB Bayer (RGGB)",
+ .guid = UVC_GUID_FORMAT_RGGB,
+ .fcc = V4L2_PIX_FMT_SRGGB8,
+ },
+ {
+ .name = "RGB565",
+ .guid = UVC_GUID_FORMAT_RGBP,
+ .fcc = V4L2_PIX_FMT_RGB565,
+ },
+ {
+ .name = "BGR 8:8:8 (BGR3)",
+ .guid = UVC_GUID_FORMAT_BGR3,
+ .fcc = V4L2_PIX_FMT_BGR24,
+ },
+ {
+ .name = "H.264",
+ .guid = UVC_GUID_FORMAT_H264,
+ .fcc = V4L2_PIX_FMT_H264,
+ },
+ {
+ .name = "H.265",
+ .guid = UVC_GUID_FORMAT_H265,
+ .fcc = V4L2_PIX_FMT_HEVC,
+ },
+ {
+ .name = "Greyscale 8 L/R (Y8I)",
+ .guid = UVC_GUID_FORMAT_Y8I,
+ .fcc = V4L2_PIX_FMT_Y8I,
+ },
+ {
+ .name = "Greyscale 12 L/R (Y12I)",
+ .guid = UVC_GUID_FORMAT_Y12I,
+ .fcc = V4L2_PIX_FMT_Y12I,
+ },
+ {
+ .name = "Depth data 16-bit (Z16)",
+ .guid = UVC_GUID_FORMAT_Z16,
+ .fcc = V4L2_PIX_FMT_Z16,
+ },
+ {
+ .name = "Bayer 10-bit (SRGGB10P)",
+ .guid = UVC_GUID_FORMAT_RW10,
+ .fcc = V4L2_PIX_FMT_SRGGB10P,
+ },
+ {
+ .name = "Bayer 16-bit (SBGGR16)",
+ .guid = UVC_GUID_FORMAT_BG16,
+ .fcc = V4L2_PIX_FMT_SBGGR16,
+ },
+ {
+ .name = "Bayer 16-bit (SGBRG16)",
+ .guid = UVC_GUID_FORMAT_GB16,
+ .fcc = V4L2_PIX_FMT_SGBRG16,
+ },
+ {
+ .name = "Bayer 16-bit (SRGGB16)",
+ .guid = UVC_GUID_FORMAT_RG16,
+ .fcc = V4L2_PIX_FMT_SRGGB16,
+ },
+ {
+ .name = "Bayer 16-bit (SGRBG16)",
+ .guid = UVC_GUID_FORMAT_GR16,
+ .fcc = V4L2_PIX_FMT_SGRBG16,
+ },
+ {
+ .name = "Depth data 16-bit (Z16)",
+ .guid = UVC_GUID_FORMAT_INVZ,
+ .fcc = V4L2_PIX_FMT_Z16,
+ },
+ {
+ .name = "Greyscale 10-bit (Y10 )",
+ .guid = UVC_GUID_FORMAT_INVI,
+ .fcc = V4L2_PIX_FMT_Y10,
+ },
+ {
+ .name = "IR:Depth 26-bit (INZI)",
+ .guid = UVC_GUID_FORMAT_INZI,
+ .fcc = V4L2_PIX_FMT_INZI,
+ },
+ {
+ .name = "4-bit Depth Confidence (Packed)",
+ .guid = UVC_GUID_FORMAT_CNF4,
+ .fcc = V4L2_PIX_FMT_CNF4,
+ },
+ {
+ .name = "HEVC",
+ .guid = UVC_GUID_FORMAT_HEVC,
+ .fcc = V4L2_PIX_FMT_HEVC,
+ },
+};
+
+static inline struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16])
+{
+ unsigned int len = ARRAY_SIZE(uvc_fmts);
+ unsigned int i;
+
+ for (i = 0; i < len; ++i) {
+ if (memcmp(guid, uvc_fmts[i].guid, 16) == 0)
+ return &uvc_fmts[i];
+ }
+
+ return NULL;
+}
+
+#endif /* __LINUX_V4L2_UVC_H */
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-26 09:56:38 +0300